Plasma-sprayed graded ceramic coatings on refractory materials for improved chemical resistance
Plasma-sprayed ceramic coatings were manufactured on sintered alumina–mullite refractory bricks to improve their chemical resistance to molten glass. Mullite and alumina powders were employed. Graded layered coatings were designed and produced, to reduce the thermal expansion mismatch with the subst...
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| Veröffentlicht in: | Journal of the European Ceramic Society 2006, Vol.26 (13), p.2561-2579 |
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| container_issue | 13 |
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| container_title | Journal of the European Ceramic Society |
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| creator | Bolelli, G. Cannillo, V. Lugli, C. Lusvarghi, L. Manfredini, T. |
| description | Plasma-sprayed ceramic coatings were manufactured on sintered alumina–mullite refractory bricks to improve their chemical resistance to molten glass. Mullite and alumina powders were employed. Graded layered coatings were designed and produced, to reduce the thermal expansion mismatch with the substrate: in all cases, the upper layer consisted in pure alumina (very resistant to chemical attack); alumina–mullite intermediate layers were added to match the low thermal expansion of the porous substrates. Plasma-sprayed coatings definitely improved both the abrasion resistance and the chemical resistance to long-time (8
h at 1400
°C) contact with molten glass, since the coating preserved its original microstructure. However, in thermal shock tests, some transverse cracks appeared; thus, thermal cycling tests in presence of molten glass indicated that, after a few cycles, the glass can penetrate down to these cracks. The tested samples were studied by means of scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS) and X-ray diffraction (XRD). |
| doi_str_mv | 10.1016/j.jeurceramsoc.2005.07.066 |
| format | Article |
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h at 1400
°C) contact with molten glass, since the coating preserved its original microstructure. However, in thermal shock tests, some transverse cracks appeared; thus, thermal cycling tests in presence of molten glass indicated that, after a few cycles, the glass can penetrate down to these cracks. The tested samples were studied by means of scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS) and X-ray diffraction (XRD).</description><identifier>ISSN: 0955-2219</identifier><identifier>EISSN: 1873-619X</identifier><identifier>DOI: 10.1016/j.jeurceramsoc.2005.07.066</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; Building materials. Ceramics. Glasses ; Ceramic industries ; Chemical industry and chemicals ; Chemical properties ; Coatings ; Exact sciences and technology ; Miscellaneous ; Plasma spraying ; Refractories ; Refractory products ; Silica-alumina refractories ; Technical ceramics ; Thermal shock resistance ; Wear resistance</subject><ispartof>Journal of the European Ceramic Society, 2006, Vol.26 (13), p.2561-2579</ispartof><rights>2005 Elsevier Ltd</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c515t-26cf1b15ea1724326ea125d2e8d0951790d9ea9a4913d79e24e65026c865c9353</citedby><cites>FETCH-LOGICAL-c515t-26cf1b15ea1724326ea125d2e8d0951790d9ea9a4913d79e24e65026c865c9353</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0955221905007491$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,4010,27900,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17960986$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Bolelli, G.</creatorcontrib><creatorcontrib>Cannillo, V.</creatorcontrib><creatorcontrib>Lugli, C.</creatorcontrib><creatorcontrib>Lusvarghi, L.</creatorcontrib><creatorcontrib>Manfredini, T.</creatorcontrib><title>Plasma-sprayed graded ceramic coatings on refractory materials for improved chemical resistance</title><title>Journal of the European Ceramic Society</title><description>Plasma-sprayed ceramic coatings were manufactured on sintered alumina–mullite refractory bricks to improve their chemical resistance to molten glass. Mullite and alumina powders were employed. Graded layered coatings were designed and produced, to reduce the thermal expansion mismatch with the substrate: in all cases, the upper layer consisted in pure alumina (very resistant to chemical attack); alumina–mullite intermediate layers were added to match the low thermal expansion of the porous substrates. Plasma-sprayed coatings definitely improved both the abrasion resistance and the chemical resistance to long-time (8
h at 1400
°C) contact with molten glass, since the coating preserved its original microstructure. However, in thermal shock tests, some transverse cracks appeared; thus, thermal cycling tests in presence of molten glass indicated that, after a few cycles, the glass can penetrate down to these cracks. The tested samples were studied by means of scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS) and X-ray diffraction (XRD).</description><subject>Applied sciences</subject><subject>Building materials. Ceramics. Glasses</subject><subject>Ceramic industries</subject><subject>Chemical industry and chemicals</subject><subject>Chemical properties</subject><subject>Coatings</subject><subject>Exact sciences and technology</subject><subject>Miscellaneous</subject><subject>Plasma spraying</subject><subject>Refractories</subject><subject>Refractory products</subject><subject>Silica-alumina refractories</subject><subject>Technical ceramics</subject><subject>Thermal shock resistance</subject><subject>Wear resistance</subject><issn>0955-2219</issn><issn>1873-619X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqNkU9vEzEQxS0EEiHwHVaVWnHZZWzH_3pDLbRIleBApd6swTtpHe2ug72plG-PQyqVE3CaOfzem9F7jJ1w6Dhw_WHTbWiXA2UcSwqdAFAdmA60fsEW3BrZau7uXrIFOKVaIbh7zd6UsgHgBpxbMP9twDJiW7YZ99Q39xn7On47xtCEhHOc7kuTpibTOmOYU943I86UIw6lWafcxHGb0-NB9UBVhENFSywzToHeslfrytG7p7lkt58_fb-4bm--Xn25-HjTBsXV3Aod1vwHV4TciJUUui5C9YJsXz_nxkHvCB2uHJe9cSRWpBVUldUqOKnkkp0dfesrP3dUZj_GEmgYcKK0K144CdJY-W_QOmet5BV8_1eQa2tXDmz1XbLzIxpyKqXm5Lc5jpj3noM_9OQ3_s-e_KEnD8bXnqr49OkOlppdzXgKsTw7GKfB2QN3eeSoxvgYKfsSItWI-5gpzL5P8X_O_QJM1rCE</recordid><startdate>2006</startdate><enddate>2006</enddate><creator>Bolelli, G.</creator><creator>Cannillo, V.</creator><creator>Lugli, C.</creator><creator>Lusvarghi, L.</creator><creator>Manfredini, T.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SE</scope><scope>8FD</scope><scope>JG9</scope><scope>7QQ</scope><scope>7QF</scope></search><sort><creationdate>2006</creationdate><title>Plasma-sprayed graded ceramic coatings on refractory materials for improved chemical resistance</title><author>Bolelli, G. ; Cannillo, V. ; Lugli, C. ; Lusvarghi, L. ; Manfredini, T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c515t-26cf1b15ea1724326ea125d2e8d0951790d9ea9a4913d79e24e65026c865c9353</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Applied sciences</topic><topic>Building materials. Ceramics. Glasses</topic><topic>Ceramic industries</topic><topic>Chemical industry and chemicals</topic><topic>Chemical properties</topic><topic>Coatings</topic><topic>Exact sciences and technology</topic><topic>Miscellaneous</topic><topic>Plasma spraying</topic><topic>Refractories</topic><topic>Refractory products</topic><topic>Silica-alumina refractories</topic><topic>Technical ceramics</topic><topic>Thermal shock resistance</topic><topic>Wear resistance</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bolelli, G.</creatorcontrib><creatorcontrib>Cannillo, V.</creatorcontrib><creatorcontrib>Lugli, C.</creatorcontrib><creatorcontrib>Lusvarghi, L.</creatorcontrib><creatorcontrib>Manfredini, T.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Corrosion Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Ceramic Abstracts</collection><collection>Aluminium Industry Abstracts</collection><jtitle>Journal of the European Ceramic Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bolelli, G.</au><au>Cannillo, V.</au><au>Lugli, C.</au><au>Lusvarghi, L.</au><au>Manfredini, T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Plasma-sprayed graded ceramic coatings on refractory materials for improved chemical resistance</atitle><jtitle>Journal of the European Ceramic Society</jtitle><date>2006</date><risdate>2006</risdate><volume>26</volume><issue>13</issue><spage>2561</spage><epage>2579</epage><pages>2561-2579</pages><issn>0955-2219</issn><eissn>1873-619X</eissn><abstract>Plasma-sprayed ceramic coatings were manufactured on sintered alumina–mullite refractory bricks to improve their chemical resistance to molten glass. Mullite and alumina powders were employed. Graded layered coatings were designed and produced, to reduce the thermal expansion mismatch with the substrate: in all cases, the upper layer consisted in pure alumina (very resistant to chemical attack); alumina–mullite intermediate layers were added to match the low thermal expansion of the porous substrates. Plasma-sprayed coatings definitely improved both the abrasion resistance and the chemical resistance to long-time (8
h at 1400
°C) contact with molten glass, since the coating preserved its original microstructure. However, in thermal shock tests, some transverse cracks appeared; thus, thermal cycling tests in presence of molten glass indicated that, after a few cycles, the glass can penetrate down to these cracks. The tested samples were studied by means of scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS) and X-ray diffraction (XRD).</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.jeurceramsoc.2005.07.066</doi><tpages>19</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Chemical properties Coatings Exact sciences and technology Miscellaneous Plasma spraying Refractories Refractory products Silica-alumina refractories Technical ceramics Thermal shock resistance Wear resistance |
| title | Plasma-sprayed graded ceramic coatings on refractory materials for improved chemical resistance |
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